A girl who has practiced boxing since she was a child and has a perverse personality and is called the Little Bully, a childhood sweetheart, a happy friend who stays by her side, and a silent boy with autism who comes from afar. A muscular senior who cooks in a pink hello kitty apron, and a sinister dad who loves his words like gold. Everyone has a side that no one knows, and everyone has their own secrets. The happy enemy matured overnight, and the silent boy mysteriously disappeared without leaving a single word. The story seemed like it never happened, but everything seemed to have changed...